README
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Building Wrapper
We embed user code into the wrapper Jar. The build process should create
user-handler.jar in the current directory before calling gradle shadowJar
See code in pkg/processor/build/runtime/java/runtime.go
Documentation
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Overview ¶
Package java implements a Java runtime
To implement a handler you need to write a class the implements io.nuclio.EventHandler.
`nuctl build` does the following logic, depends on the value of `-p`: - If it's a jar, use it - If it's a directory and there's `handler.jar` there, use it - If it's a directory with only single jar (including subdirectories), use it - If there's a `build.gradle` file there - run `nuclioJar` task and use jar from `build` directory - If there's no `build.gradle`, generate one, build annd use jar from `build` directory
Build will work also if the path passed is a single Java file. You can specify dependencies using (inline in Java file or Jar) build configuration.
// @nuclio.configure // // function.yaml: // spec: // build: // dependencies: // - group: com.google.code.gson // name: gson // version: 2.8.9 // - group: com.google.guava // name: guava // version: 23.6-jre
The default image is using OpenJDK 11 If you have dependencies in other packages, create a fat/uber Jar with all the dependencies. We currently do not support maven/sbt/ant/... builds.
You can specify JVM options in the configuration as well, i.e.:
// @nuclio.configure // // function.yaml: // spec: // runtimeAttributes: // jvmOptions: // - -Xms128m // - -Xmx512m
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func NewRuntime ¶
func NewRuntime(parentLogger logger.Logger, configuration *runtime.Configuration) (runtime.Runtime, error)
NewRuntime returns a new Java runtime
Types ¶
This section is empty.
Source Files